Chemistry Flashcards
Name three states of matter
Liquid
Gas
Solid
How do you change a liquid to a gas
Evaporation/ Boiling
How do you change a gas to a liquid
Condensation
How do you change a solid to a liquid
Melting
Name three liquids at room temperature
Water
Oil
Mercury
Name three solids at room temperature
Wood
Gold
Metal
Name three gases
Hydrogen
Oxygen
Fluoride
State why you cannot compress a liquid
Because the particles are touching and continuasly sliding over each other
What is an element
A substance that cannot be broken down into other substances
What is a monecule
A monecule is a group of two or more atoms strongly joined together
What is a compound
A compound is a substance that is made up of two or more elements or two or more atoms strongly joined together
What is meant by a mixture
A mixture contains two or more substances that could be elements or compounds
Describe how to make sure the sample of a substance is pure
If the sample has the same melting or boiling point as the substance, then we can confirm that the substance is pure
What is a solution
A type of mixture involving two or more substances
When you add sugar to water what are they named
The sugar dissolves in the water. The water is the SOLVENT. The sugar is the SOLUTE
